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iii
Contents
Safety information ......................................................................................................vi
About this guide .........................................................................................................vi
M5A78L-M LX3 Series specications summary ....................................................viii
Package contents ........................................................................................................x
Chapter 1: Product introduction
1.1 Special features ............................................................................................1-1
1.1.1 Product highlights ...........................................................................1-1
1.1.2 ASUS Exclusive Features ...............................................................1-2
1.2 Before you proceed ......................................................................................1-3
1.3 Motherboard overview .................................................................................1-4
1.3.1 Placement direction ........................................................................1-4
1.3.2 Screw holes ....................................................................................1-4
1.3.3 Motherboard layout .........................................................................1-5
1.3.4 Layout contents ...............................................................................1-6
1.4 Central Processing Unit (CPU) ....................................................................1-6
1.4.1 CPU installation ..............................................................................1-7
1.4.2 CPU heatsink and fan assembly installation ...................................1-8
1.5 System memory ..........................................................................................1-10
1.5.1 Overview .......................................................................................1-10
1.5.2 Memory congurations ..................................................................1-11
1.5.3 Installing a DIMM ..........................................................................1-15
1.6 Expansion slots ..........................................................................................1-16
1.6.1 Installing an expansion card .........................................................1-16
1.6.2 Conguring an expansion card .....................................................1-16
1.6.3 PCI slot .........................................................................................1-16
1.6.4 PCI Express x1 slot .......................................................................1-16
1.6.5 PCI Express x16 slot .....................................................................1-16
1.7 Jumpers.......................................................................................................1-17
1.8 Connectors ..................................................................................................1-19
1.8.1 Rear panel ports ...........................................................................1-19
1.8.2 Internal connectors .......................................................................1-20
1.9 Software support ........................................................................................1-25
1.9.1 Installing an operating system ......................................................1-25
1.9.2 Support DVD information ..............................................................1-25
Chapter 2: BIOS information
2.1 Managing and updating your BIOS .............................................................2-1
2.1.1 ASUS Update utility ........................................................................2-1
2.1.2 ASUS EZ Flash 2 utility ...................................................................2-2